Question about 1993 Toyota Camry V6

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TOYOTA CAMRY 6 CY 1993 otomatic

DEAR

my car coming very hot and i chinge the redeyator to almoniom one still hot i romove the head and i sendit to turner machine i bot new jascet still hot and the whater is boiling

can you give me what can i do

thnks & regards

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  • Toyota Master
  • 2,122 Answers

Hi yehia_shaban,
Is you vehicle fitted with a 'V' 6 or 'in line'....The thermostat could be the problem, but if you take it out also replace it with a new one...With fuel injection engines, the coolant temp is constantly read by the computer and it must be maintained....the thermostat is not only there to warm the engine quickly, but also to maintain the temprature at a constant....it works by being able to adjust the flow rate of the coolant....

When you removed the head for machining, did you also inspect the top of the engine block....Sometimes, especialy with the 'V' engine, the rear bank of cylinders (the one closest to the cabin....this is with the transverse mounted engine....Front wheel drive) the engine block burns through....As this damage occures under the gasket adjacent to the water jacket, it will cause leakage and over heating....The quick fix sollution is to take a high grade exhust gasket repair compound fill the damaged area and wait for it to harden for at least twenty four hours before filing it flush....Fire gum is usable....but this is a temperary solution....The permenant way is to remove the engine, strip it down and have the damage built up by specalist welding....The block will then have to be taken for machining....Line bore, for the crank shaft....The top of the block will have to be checked for distortion, and given a very light skim if needed....You'll also need to have the bores checked for distortionand attended to if nescassery....Its a big job for a little damage....

As my friend has said, there are common over heating reasons, but I believe in bringing back to what the manufactures designed instead of modifying these design features out....Hard wiring the cooling fan will have the result of the vehicle using more fuel and the cooling system keeping the coolant at too low a tempriture...

Posted on Aug 31, 2008

  • Sorry I hadn't finished and it posted it's self....Try the radiator cap, that can also cause overheating....make sure you get a good quality replacement....As my friend suggested, do all those tests too....The water pump can be the main cause, but it can have caused the damage that I've said in the first part of this note to you....Let us both know how you get on....



    Best regards Johngee10

  • Also make sure that the valve timing is correct...If someone has changed the timing belt...make sure that all the timing marks are aligned....

    Again best regards Johngee10

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  • Master
  • 6,966 Answers

Hi,

Possible causes of overheating are:

  • stuck thermostat. In my country, some mechanics even remove entirely the thermostat (not applicable on cold weather);
  • faulty water pump;
  • too soft radiator hoses (upper and lower);
  • faulty/slow radiator fan. Again, in my country, some mechanics hard wire the radiator fan to be always on when the engine is running. In some cases, it could be the fan clutch.
This is of course assuming that nothing is internally wrong with the engine, the coolant level is as required and that there are no leaks. air bubbles and the belt driving the water pump is mechanical sound.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 27, 2008

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